Canvas event handling with a custom menu

Hey guys!
OK, first off i have been trucking along quite nicely on this midlet but i think i have hit a fork in the road.
I designed a custom menu that extends Canvas.
I keep track of what is selected (there are 4 items) as an int value (0-3).
When the midlet first starts, I have it go to the menu canvas.
Now the problem I have is that I cannot figure out a way to signal the midlet to load another screen (a form Displayable) when the 'FIRE' button is pushed. (Note: the up and down buttons work fine)
What is a good aproach to signal to the main class midlet that I want to load the corresponding screen??
I have tried boolean with accsesor methods, and cannot get that way to work.
If there is a a good link you guys have handy please pass it along also!
Thanks,
Nick
www.2002registry.com

Can't you just do the following:
if (action == FIRE)
display.setCurrent(your_new_screen);
do_what_ever();

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